Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 1.1, Problem 2TQ
Summary Introduction
To review:
The nature of viruses.
Introduction:
A microorganism may exist in the form of a colony or as a free-living form. A virus is an infectious agent that can replicate inside the host body. They can infect different types of life forms, ranging from plants and animals to microbes. The viruses are composed of a genetic material that is encapsulated inside a protein coat called the capsid.
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Microbiology: An Evolving Science (Fourth Edition)
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- Which statement is true? a. A virion contains DNA and RNA. b. Viruses are acellular. c. Viruses replicate outside of the cell. d. Most viruses are easily visualized with a light microscope.arrow_forwardFigure 17.6 Influenza virus is packaged in a viral envelope, which fuses with the plasma membrane. This way, the virus can exit the host cell without killing it. What advantage does the virus gain by keeping the host cell alive?arrow_forwardCan viruses reproduce by themselves?arrow_forward
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